Bolt or nut tightening device



FIG. 1 is a front elevational view of a bolt or nut tightening device ofthe present design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a sectional view taken on line 7—7 of FIG. 1

FIG. 8 is a sectional view taken on line 8—8 of FIG. 1

FIG. 9 is a sectional view taken on line 9—9 of FIG. 1

FIG. 10 is a sectional view taken on line 10—10 of FIG. 1

FIG. 11 is a sectional view taken on line 11—11 of FIG. 1

FIG. 12 is a sectional view taken on line 12—12 of FIG. 1

FIG. 13 is a first perspective view thereof, as seen from diagonallyleft upward of a socket attached side;

FIG. 14 is a second perspective view thereof, as seen from diagonallyright upward of the socket attached side;

FIG. 15 is a third perspective view thereof, as seen from diagonallyleft downward of the socket attached side;

FIG. 16 is a fourth perspective view thereof, as seen from diagonallyright downward of the socket attached side;

FIG. 17 is a fifth perspective view thereof, as seen from diagonallyleft upward of a handle side;

FIG. 18 is a sixth perspective view thereof, as seen from diagonallyright upward of the handle side;

FIG. 19 is a seventh perspective view thereof, as seen from diagonallyleft downward of the handle side; and,

FIG. 20 is a eighth perspective view thereof, as seen from diagonallyright downward of the handle side.

The broken lines are shown in the views for illustrative purposes onlyand form no part of the claimed invention.

The ornamental design for bolt or nut tightening device, substantiallyas shown and described.